forked to background, child pid 3177
[   25.610234][ T3178] 8021q: adding VLAN 0 to HW filter on device bond0
[   25.619978][ T3178] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: [   25.946112][ T3265] sshd (3265) used greatest stack depth: 22792 bytes left
OK

syzkaller
Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   46.780108][ T3594] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor385/3594
[   46.789950][ T3594] caller is netdev_core_stats_alloc+0x98/0x110
[   46.796182][ T3594] CPU: 0 PID: 3594 Comm: syz-executor385 Not tainted 5.17.0-rc7-syzkaller-02443-gd96657dc9238 #0
[   46.806695][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.816737][ T3594] Call Trace:
[   46.819998][ T3594]  <TASK>
[   46.822910][ T3594]  dump_stack_lvl+0xcd/0x134
[   46.827506][ T3594]  check_preemption_disabled+0x16b/0x170
[   46.833129][ T3594]  netdev_core_stats_alloc+0x98/0x110
[   46.838486][ T3594]  tun_get_user+0x2e67/0x3ab0
[   46.843152][ T3594]  ? tun_build_skb+0x1010/0x1010
[   46.848073][ T3594]  ? lock_downgrade+0x6e0/0x6e0
[   46.852912][ T3594]  tun_chr_write_iter+0xe1/0x200
[   46.857831][ T3594]  new_sync_write+0x431/0x660
[   46.862494][ T3594]  ? new_sync_read+0x6e0/0x6e0
[   46.867279][ T3594]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   46.873503][ T3594]  ? security_file_permission+0xab/0xd0
[   46.879035][ T3594]  vfs_write+0x7cd/0xae0
[   46.883260][ T3594]  ksys_write+0x12d/0x250
[   46.887585][ T3594]  ? __ia32_sys_read+0xb0/0xb0
[   46.892336][ T3594]  ? syscall_enter_from_user_mode+0x21/0x70
[   46.898215][ T3594]  do_syscall_64+0x35/0xb0
[   46.902612][ T3594]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   46.908490][ T3594] RIP: 0033:0x7f7b1f00a7e3
[   46.912885][ T3594] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
[   46.932470][ T3594] RSP: 002b:00007ffed07a0d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   46.940875][ T3594] RAX: ffffffffffffffda RBX: 00007ffed07a0d30 RCX: 00007f7b1f00a7e3
[   46.948835][ T3594] RDX: 0000000000003526 RSI: 0000000000000000 RDI: 00000000000000c8
[   46.956871][ T3594] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[   46.964833][ T3594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   46.972793][ T3594] R13: 00007ffed07a0d20 R14: 00007ffed07a0d18 R15: 00007ffed07a0d14
[   46.980779][ T3594]  </TASK>